Whether it's music, activism or daily life, the one ideal to which I have always aspired is constant challenge -- taking risks, stepping out of my comfort zone, exploring new ideas.

I am writing because I believe the United States must do precisely that -- and so, therefore, must all of us -- in the case of what has been the most unsuccessful, unjust yet untouchable issue in politics: the War on Drugs.

The War on Drugs has failed -- but it's worse than that. It is actively harming our society. Violent crime is thriving in the shadows to which the drug trade has been consigned. People who genuinely need help can't get it. Neither can people who need medical marijuana to treat terrible diseases. We are spending billions, filling up our prisons with non-violent offenders and sacrificing our liberties.